Improvement in shipsj anchors



UNITED STATES PATENT EricE.

NICHOLAS P. ISAACS AND JAMES RAISBECK, OF NEW YORK, N. Y.

VIMPROVEMENT IN SHIPS ANCHORS.

Specification forming part of Letters Patent No. 4,096, dated July 5,1845.

To a/ZZ whom 1325.711603/ concern.-

Be it known that we, NICHoLAs PETER IsAAcs and J AMES RAIsBEcK, of thecity, county, and State of New York, have invented a new and improvedmode of preventing the accidental fouling of the cable upon the stockand arms of the common ship-anchor, and method of fishing the same; andWe do declare that the following isa full and exact description of ourimprovements, reference being had to the drawings hereto annexed Toprevent the fouling of the cable upon the stock of the anchor, we attachto the stock of the anchor (which we make either of wood or iron; if ofthe former material our improvements can be adapted to the form of stockcommonly used; if we construct one of iron we take a straight firm barof uniform size throughout) bars of metal, pieces of cable, or any othersuitable substance, which we call protectors.7 These are fastened to theextremities thereof by fitting into sockets or` holes and held by meansof pins or pegs, as at A A, and are of such a length as to extend downand are fastened by similar means into permanent sockets made below thetrend' of the anchor, as at B B. These protectors are fastenedtemporarily, so as to be easilytaken out from their places and laidalongside of the shank in the stowage or housing of the anchor.

The second invention we claim isa method for obviating the fouling ofthe cable upon the arms of the anchor. In order to prevent thisoccurrence, we construct two flat plates of iron C C, which we callsliding inkes. Their form can be better understood by referring to thedrawings, Figure N. Ve attach one of these plates to each fluke of theanchor by means of a hinge, hooks, rings, or any other flexible meansupon which it works, as at D D D D. The plates lie upon the arms of theanchor and extend to the shank, where they slide upon projections orridges E E, one situated upon each side of the shank,

`and extending from a point just below where the protectors join theshank to the throat of the anchor. These projections or ridges fit intogrooves cnt into the extremities of these plates or sliding linkes, uponwhich they work from a position at nearly right angles with the shank toa position parallel with the arms of the anchor. The extremities ofthese plates next to the shank are connected with each other by means ofa rope or chain I, passing through a hole made through the shank at apoint G. The ends of the chain or rope are fastened the one to the oneplate and the other to the other, as at H H, by means of small rings,bolts, or similar fastenings. This connecting chain or cable is of sucha length that when the one plate is forced down flat upon the arms ofthe anchor by the force of the ground acting upon it (when in actualoperation) the opposite plate may be drawn up to a position at rightangles, or nearly so. To each side of the iiuke of the commonship-anchor at its widest part we attach a guard K O K, consisting of anarrow strip of iron of suflicient strength to bear the entire weight ofthe anchor by firmly welding each extremity to each fluke, as at K K KK, these guards extending from uke to fluke. The middle of each of theseguards we connect with the side of the crown of the anchor by means of ashort shoulder O, leaving a space between them land the arms and crownof the anchor. These guards are to be adapted to the same curvature ofthe arms and crown of the anchor. These additions and modifications toand about the common ship-anchor and their application for the purposesherein minutely described are improvements which we claim to be of ourown invention, which are briefly enumerated as follows:

1. The method by which the cable is prevented from fouling upon thestock of the anchor by attaching protectors to the extremities thereof,which extend down and are fastened to the shank at a point below thetrend of the shank. These protectors from their oblique position clearthe cable whenever it touches it. They also obviate another difficultywhich is frequently presented when the anchor is lashed to the cat-head,which occurs in the entangling of the ropes and the obstructing andtearing of the sails upon the portion of the naked stock which standsabove the gunwale. This is prevented by warding off Whatever comesincontact with it.

2. The mode of protecting the arms of the anchor against the fouling ofthe cable by means of movable plates of metal attached to the ukes bymeans of rings or hinges, and covering the entire arm, the same beingcombined and operating as herein set forth. The inner endsof theseplates move longitudinallyupon ridges or projections made upon each sideof the shank by mea'ns of a connecting chain or rope, by which when theone plate is forced down upon the arm of the anchor the other is drawnup to a position at right angles, or nearly so, with the shank, so thatwhen the one arm lies buried in the soil the. opposite one standsdefended by the raised plate against the fouling of the cable, whichplate assumes aposition nearly perpendicular to the soil.

3. For clearing the cable from off the arms of the anchor whenever itcomes in contact with it, the combination of the hinged sliding platesCC with the two guards K O K of the same curvature of the arms and crown,consisting of narrow strips of iron extending from fluke to fluke andwelded upon the sides of each. These guards are also attached to thecrown of the anchor by means of a short shoulder, leaving a spacebetween them and the arms of the anchor. These guards so situated createa great width across the crown of the anchor, presenting a form, asshown in Fig. M, by means of which width and the curvature of the guardsit is impossible to foul the cable effectually upon the arms, and itrequires but the smallest force to cause the anchor to cant and bite theground. The space left between the guards and arms presents a means bywhich the fish-hook can be fastened about the guards or arms in such amanner as to sh the anchor.

N. P. ISAAGS. JAMES RAISBEOK. In presence of- SAMUEL M. RAIsBEoK,MArTHrAs GARsTENs.

